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I wish to create a android app which will be on top or wireless/Bt protocol and could communicate with Raspberry pi. Through this i want to controll the GPIO pins on my raspberry. For eg i want to have a app on phone through which i could be able to swith of a led. Please help in understanding if this is possible and if some resources are availabele in this area which could be used for my project.

Thanks.

  • have you looked at cayenne – Clémentine Sep 2 '16 at 16:06
  • Have you tried googling your problem? The RPi is obviously capable of sending and receiving messages, and running a full Linux operating system. There are a tremendous amount of ways such a project could be done. – Jacobm001 Sep 2 '16 at 23:26
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This should be possible. Break it down into parts:

  1. Write an app for your mobile phone. There are really good getting started tutorials for Android.

  2. Get the app to send messages to the Raspberry Pi over Bluetooth. Google is your friend. I found this example of a project which does exactly that.

  3. Make the commands change the state of the GPIO pins. Lots of tutorials exist for how to control GPIOs.

I hope that will get you started. If not, please let us know more about what you do or don't know. (For example, how much programming have you done - in general, on the Pi, and for Android?)

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Note that while it should be possible, it currently doesn't seem to be possible with the built-in Bluetooth on an RPi 3B. Source: Bluetooth Connection problem

The link everyone points to is a guy using a USB Bluetooth dongle, which is not the same thing unfortunately.

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